memcg-optimize-exit-to-user-space-fix

remove now-unneeded test of memcg_nr_pages_over_high==0, per Shakeel

Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index fda25d7b4ffc5f0b178f6f52c200cb84236e97b0..9712a751690f9c621e65e712e4632d0b5ad0c9dc 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2213,9 +2213,6 @@ void __mem_cgroup_handle_over_high(gfp_t gfp_mask)
        struct mem_cgroup *memcg;
        bool in_retry = false;
 
-       if (likely(!nr_pages))
-               return;
-
        memcg = get_mem_cgroup_from_mm(current->mm);
        current->memcg_nr_pages_over_high = 0;